EP 1015915 B1 20030702 - GLITTERING CUBE-CORNER RETROREFLECTIVE SHEETING
Title (en)
GLITTERING CUBE-CORNER RETROREFLECTIVE SHEETING
Title (de)
GLITZERNDE TRIPELSPIEGEL-RETROREFLEKTOR-FOLIE
Title (fr)
REVETEMENT RETROREFLECHISSANT SCINTILLANT UTILISANT DES ELEMENTS PYRAMIDAUX
Publication
Application
Priority
- US 9705594 W 19970403
- US 64032696 A 19960430
Abstract (en)
[origin: WO9741465A1] A cube-corner retroreflective sheeting (60) includes an array of cube-corner elements (30) that are defined by three sets of intersecting parallel grooves (45, 46, 47). The cube-corner elements (30) are arranged in the array such that the sheeting (60) glitters when exposed to light. The glitter is in the form of many discrete points of light (68) that tend to blink on and off when viewed by the nacked eye. The array may be configured such that a dihedral angle alpha varies between adjacent cube faces (31) of adjacent cube-corner elements (30) in each groove in one of the groove sets (45, 46 or 47) and such that base planes (36) are not parallel to each other when the sheeting (60) is laid flat. Preferably, the dihedral angle alpha between faces (31) of adjacent cube-corner elements (30) varies in essentially all of the grooves such that the cube-corner elements are randomly tilted throughout the array. The sheeting glitters very well under daytime viewing conditions and also to some extent under nighttime or retroreflective conditions. The glittering effect can enhance the sheeting's conspicuity, and hence highlight a person's presence to give them improved safety and security.
IPC 1-7
IPC 8 full level
G02B 5/124 (2006.01)
CPC (source: EP KR US)
G02B 5/124 (2013.01 - EP KR US); Y10T 428/24479 (2015.01 - EP US)
Designated contracting state (EPC)
DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9741465 A1 19971106; AU 2438797 A 19971119; AU 719746 B2 20000518; BR 9708883 A 20000509; CN 1150408 C 20040519; CN 1216615 A 19990512; DE 69723320 D1 20030807; DE 69723320 T2 20040422; EP 1015915 A1 20000705; EP 1015915 B1 20030702; ES 2197994 T3 20040116; HK 1019933 A1 20000303; JP 2000509167 A 20000718; KR 100294097 B1 20010907; KR 20000018266 A 20000406; TW 344803 B 19981111; US 5840405 A 19981124
DOCDB simple family (application)
US 9705594 W 19970403; AU 2438797 A 19970403; BR 9708883 A 19970403; CN 97194050 A 19970403; DE 69723320 T 19970403; EP 97920113 A 19970403; ES 97920113 T 19970403; HK 99105031 A 19991104; JP 53889897 A 19970403; KR 19980708775 A 19981030; TW 86104629 A 19970410; US 64032696 A 19960430